I’ve spent years helping large enterprises recover from catastrophic outages: cloud failures, regional blackouts, hurricanes, floods and yes, winter storms. What has no longer come as any surprise to me is that modern IT environments are far more fragile than most leadership teams are willing to admit.
A winter storm doesn’t need to be “apocalyptic” to cause real damage. Extended power loss, frozen infrastructure, inaccessible offices and regional internet outages can cripple operations for days or longer. Real resilience isn’t heroic last-minute decision making during a crisis. It’s unglamorous, disciplined preparation done well in advance.
Here are five practical ways enterprises can harden their backup and disaster-recovery posture before the next storm arrives.
1. Embrace true regional diversity
Relying on a single data center, or even a single cloud region, is a gamble. A significant portion of data-center downtime still traces back to weather-driven power failures. If a major winter storm knocks out an availability zone, your applications go dark regardless of how many “nines” your hyperscaler promises.
We've also seen regional infrastructure dependencies fail repeatedly over the last five y years. Network dependencies between cloud regions mean that when one region goes down, it can take interconnected regions with it. AWS itself can't guarantee availability within a region. That 99.5% SLA exists because core services call back to specific regions. This architectural reality won't change anytime soon, and there's only so much you can do if you're reliant on a single cloud, let alone a single region.
The fix: Ensure your failover site lives in an entirely different geographic region and can be activated automatically. If recovery requires human intervention during a storm, your plan is already too fragile. Choose tools that simplify disaster recovery and guarantee immediate restore from an air-gapped location.
2. Air-gap your data offsite without paying twice
Putting all your backups in the same cloud that runs production defeats the point of resilience. Entire cloud regions can and do go dark. But many IT teams avoid multi-cloud backups because of complexity and punishing egress fees. The fix: modern tools now let teams replicate data across AWS and Azure or into ultra-low-cost object storage for very long-term without operational sprawl or double billing.
Even better, today’s platforms can create true, logical air-gaps in separate clouds such as Wasabi low cost storage that isolate your data in a separate environment without needing a second full infrastructure footprint. These solutions also layer on immutability, ensuring that once backup data lands, it cannot be modified, encrypted or deleted, even by compromised credentials or malicious insiders. Enterprises can recover rapidly from these locations, even if a winter storm or regional outage takes an entire cloud offline.
The goal is such that when your primary cloud becomes unreachable, your data shouldn’t disappear with it.
3. Expect cyber attacks after the storm and plan for them
Both the FBI and CISA consistently warn that phishing and ransomware campaigns spike after major weather events. Attackers know IT teams are distracted, workflows are disrupted, and employees are hungry for updates.
The fix: It goes beyond basic awareness training. Run storm-themed phishing simulations before winter hits such as fake “power restoration” notices, “weather alerts,” or “emergency HR updates.” Pre-stage internal communications so employees know exactly where legitimate updates will come from during an outage. And most importantly, ensure backups are isolated, immutable and untouchable, even if credentials are compromised.
4. Plan for power loss at the human layer
Your cloud may be running, but what happens if your people aren’t? What if key staff lose power for days, can’t access documentation or are working from insecure home networks?
The fix: Resilience includes human availability. Cross-train teams, distribute critical roles across regions and make sure essential documentation is accessible offline. Enforce VPN access and MFA for remote work — and assume home office security will degrade during extended outages.
It’s also worth thinking beyond traditional tools. If Slack, email or cellular networks fail, “off-grid” communication options like MeshTastic or peer-to-peer messaging can keep teams coordinated when everything else goes dark.
5. Treat extreme weather as a business risk — not an IT problem
In countries like Sweden and the UK, governments openly plan for multi-week service disruptions. Enterprises should adopt the same mindset.
Effective long-term disruption preparation should include:
- Regular, scheduled tests that model uncomfortable, worst-case timelines.
- Proof of full-environment failover drills, supported by tools that automatically produce auditable logs and reports.
- Clear tagging and prioritization of critical resources to guide recovery sequencing.
- Replication of all network and configuration settings, ensuring metadata, VMs and databases return in a healthy, fully functional state.
- Recovery tests that deliberately omit key personnel, ensuring any team member — not just the usual experts — can execute a seamless restore if others are literally stuck under a sheet of ice.
The reality is that we must accept that extreme weather is no longer an edge case. It’s a recurring operational threat that demands board-level attention and enterprise-wide preparation.
